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Volume 22 Issue 5
Sep.  2013
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Citation:
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Fourier analysis to diffraction efficiency of step gratings

  • 1.

    Department of Optoelectronic Engineering, HUST, Wuhan, 430074

  • Received Date: 1997-10-01
    Accepted Date: 1997-12-22
  • Using Fourier transfer,we extend the transparent index function of step grating into Fourier series and derived the expression of diffraction efficiency.The expression shows that the diffraction efficiency is the function of width ratio ξ,height ratio γ and wavelength ratio σ.As a example,we give the calculation results of diffraction efficiency of 2-level step grating.
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  • [1] 周进,韩良恺,高文琦et al中国激光,1996;23(5):449~452
    [2] 叶钧,许乔,侯西云et al.光学学报,1996,16(10):1350~1355
    [3] 吕乃光傅里叶光学北京:机械工业出版社,1988:23
    [4] (苏)马特维耶夫等著,王成彦译光学解题指导北京:北京大学出版社,1991:123
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Fourier analysis to diffraction efficiency of step gratings

  • 1. Department of Optoelectronic Engineering, HUST, Wuhan, 430074
  • Received Date: 1997-10-01
  • Accepted Date: 1997-12-22
  • Available Online: 1998-09-25

Abstract: Using Fourier transfer,we extend the transparent index function of step grating into Fourier series and derived the expression of diffraction efficiency.The expression shows that the diffraction efficiency is the function of width ratio ξ,height ratio γ and wavelength ratio σ.As a example,we give the calculation results of diffraction efficiency of 2-level step grating.

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